SMTP Service STARTTLS Plaintext Command Injection

Medium Nessus Plugin ID 52611

Synopsis

The remote mail service allows plaintext command injection while negotiating an encrypted communications channel.

Description

The remote SMTP service contains a software flaw in its STARTTLS implementation that could allow a remote, unauthenticated attacker to inject commands during the plaintext protocol phase that will be executed during the ciphertext protocol phase.

Successful exploitation could allow an attacker to steal a victim's email or associated SASL (Simple Authentication and Security Layer) credentials.

Solution

Contact the vendor to see if an update is available.

See Also

https://tools.ietf.org/html/rfc2487

https://www.securityfocus.com/archive/1/516901/30/0/threaded

Plugin Details

Severity: Medium

ID: 52611

File Name: smtp_starttls_plaintext_injection.nasl

Version: 1.21

Type: remote

Published: 2011/03/10

Updated: 2019/03/06

Dependencies: 42088

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4

Temporal Score: 3.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2011/03/07

Reference Information

CVE: CVE-2011-0411, CVE-2011-1430, CVE-2011-1431, CVE-2011-1432, CVE-2011-1506, CVE-2011-2165

BID: 46767

CERT: 555316